Metal-Free Benzodithiophene-Containing Organic Dyes for Dye-Sensitized Solar Cells
作者:Elena Longhi、Alberto Bossi、Gabriele Di Carlo、Stefano Maiorana、Filippo De Angelis、Paolo Salvatori、Annamaria Petrozza、Maddalena Binda、Vittoria Roiati、Patrizia Romana Mussini、Clara Baldoli、Emanuela Licandro
DOI:10.1002/ejoc.201200958
日期:2013.1
Two new metal-freeorganicdyes, CR29 and CR52, with high extinction coefficients in the visible spectral region between 400–650 nm, have been synthesized. The donor–acceptor structure of the dyes feature benzodithiophene moieties BDT1 and BDT as rigid π-conjugated spacers, which have so far been very little studied for dye-sensitizedsolarcell (DSSC) applications. DFT/TDDFT calculations have been
Synthesis, crystal structure and properties of thiaheterohelicenes containing phenolic hydroxy functions
作者:Yoshinori Kitahara、Kazuhiko Tanaka
DOI:10.1039/b110514k
日期:2002.4.19
A convenient method for preparation of dimethoxythiahelicene 4 and dihydroxythiahelicene 5 is described; these helical molecules showed self-assembling properties such as enantiomorphic crystal growth and clathrate formation.
Photocyclization of 2,7-bis[3-(t-butyldimethylsilyloxy)phenylvinylene]benzo[1,2-b:4,3-b′]dithiophene affords three regioisomers of the bis(silyloxy)[7]thiaheterohelicenes together with the unexpected 4-phenyl-substituted [7]thiaheterohelicene. Cleavage of the silyl ethers gave the helical quinone, which includes ethanol as guest molecules to form a 1:1 inclusion complex.
Thiaheterohelicenes. 1. Synthesis of Unsubstituted Thia[5]-, [9]- and [13]heterohelicenes.
作者:Jan Larsen、Klaus Bechgaard、Klaus Bechgaard、Jon Songstad、Markku Leskelä、Mika Polamo、Muhammed Nour Homsi、Frank K. H. Kuske、Monika Haugg、Nathalie Trabesinger-Rüf、Elmar G. Weinhold
DOI:10.3891/acta.chem.scand.50-0071
日期:——
The unsubstituted thiaheterohelicenes, 5,8-dithia[5]helicene, 1, 5,8,11,14-tetrathia[9]helicene, 2, and 5,8,11, 14,17,20-hexathia[13]helicene, 3, have been prepared. The key reaction was the oxidative photolysis of 1,2-diaryl-substituted ethenes which were prepared by Wittig-Horner or McMurry reactions.
[EN] METAL-FREE PHOTOSENSITIZERS<br/>[FR] PHOTOSENSIBILISATEURS EXEMPTS DE MÉTAL
申请人:UNIV DEGLI STUDI MILANO
公开号:WO2012107488A2
公开(公告)日:2012-08-16
The present invention relates to metal-free organic photosensitizers and to the process for their preparation; the use of such compounds for manufacturing solar cells is contemplated as well.